<template>
    <Dialog v-model="dialogVisible" title="菜单权限" width="800">
        <el-form ref="formRef" v-loading="formLoading" :model="formData" label-width="80px">
            <el-form-item label="角色名称">
                <el-tag>{{ formData.name }}</el-tag>
            </el-form-item>
            <el-form-item label="角色标识">
                <el-tag>{{ formData.code }}</el-tag>
            </el-form-item>
            <el-form-item label="权限范围">
                <el-select v-model="formData.dataScope">
                    <el-option
                            v-for="item in getIntDictOptions(DICT_TYPE.SYSTEM_DATA_SCOPE)"
                            :key="item.value"
                            :label="item.label"
                            :value="item.value"
                    />
                </el-select>
            </el-form-item>
        </el-form>
        <el-form-item
                v-if="formData.dataScope === SystemDataScopeEnum.DEPT_CUSTOM"
                label="权限范围"
                style="display: flex"
        >
            <el-card class="card" shadow="never">
                <template #header>
                    全选/全不选:
                    <el-switch
                            v-model="treeNodeAll"
                            active-text="是"
                            inactive-text="否"
                            inline-prompt
                            @change="handleCheckedTreeNodeAll()"
                    />
                    全部展开/折叠:
                    <el-switch
                            v-model="deptExpand"
                            active-text="展开"
                            inactive-text="折叠"
                            inline-prompt
                            @change="handleCheckedTreeExpand"
                    />
                    父子联动(选中父节点，自动选择子节点):
                    <el-switch v-model="checkStrictly" active-text="是" inactive-text="否" inline-prompt/>
                </template>
                <el-tree
                        ref="treeRef"
                        :check-strictly="!checkStrictly"
                        :data="deptOptions"
                        :props="defaultProps"
                        default-expand-all
                        empty-text="加载中，请稍后"
                        node-key="id"
                        show-checkbox
                />
            </el-card>
        </el-form-item>
        <template #footer>
            <el-button :disabled="formLoading" type="primary" @click="submitForm">确 定</el-button>
            <el-button @click="dialogVisible = false">取 消</el-button>
        </template>
    </Dialog>
</template>
<script lang="ts" setup>
import {DICT_TYPE, getIntDictOptions} from '@/utils/dict'
import {defaultProps, handleTree} from '@/utils/tree'
import {SystemDataScopeEnum} from '@/utils/constants'
import * as RoleApi from '@/api/system/role'
import * as DeptApi from '@/api/system/dept'
import * as PermissionApi from '@/api/system/permission'

defineOptions({name: 'SystemRoleDataPermissionForm'})

const {t} = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formData = reactive({
    id: 0,
    name: '',
    code: '',
    dataScope: undefined,
    dataScopeDeptIds: []
})
const formRef = ref() // 表单 Ref
const deptOptions = ref<any[]>([]) // 部门树形结构
const deptExpand = ref(false) // 展开/折叠
const treeRef = ref() // 菜单树组件 Ref
const treeNodeAll = ref(false) // 全选/全不选
const checkStrictly = ref(true) // 是否严格模式，即父子不关联

/** 打开弹窗 */
const open = async (row: RoleApi.RoleVO) => {
    dialogVisible.value = true
    resetForm()
    // 加载 Dept 列表。注意，必须放在前面，不然下面 setChecked 没数据节点
    deptOptions.value = handleTree(await DeptApi.getSimpleDeptList())
    // 设置数据
    formData.id = row.id
    formData.name = row.name
    formData.code = row.code
    formData.dataScope = row.dataScope
    row.dataScopeDeptIds?.forEach((deptId: number) => {
        treeRef.value.setChecked(deptId, true, false)
    })
}
defineExpose({open}) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
    formLoading.value = true
    try {
        const data = {
            roleId: formData.id,
            dataScope: formData.dataScope,
            dataScopeDeptIds:
                    formData.dataScope !== SystemDataScopeEnum.DEPT_CUSTOM
                            ? []
                            : treeRef.value.getCheckedKeys(false)
        }
        await PermissionApi.assignRoleDataScope(data)
        message.success(t('common.updateSuccess'))
        dialogVisible.value = false
        // 发送操作成功的事件
        emit('success')
    } finally {
        formLoading.value = false
    }
}

/** 重置表单 */
const resetForm = () => {
    // 重置选项
    treeNodeAll.value = false
    deptExpand.value = false
    checkStrictly.value = true
    // 重置表单
    formData.value = {
        id: 0,
        name: '',
        code: '',
        dataScope: undefined,
        dataScopeDeptIds: []
    }
    treeRef.value?.setCheckedNodes([])
    formRef.value?.resetFields()
}

/** 全选/全不选 */
const handleCheckedTreeNodeAll = () => {
    treeRef.value.setCheckedNodes(treeNodeAll.value ? deptOptions.value : [])
}

/** 展开/折叠全部 */
const handleCheckedTreeExpand = () => {
    const nodes = treeRef.value?.store.nodesMap
    for (let node in nodes) {
        if (nodes[node].expanded === deptExpand.value) {
            continue
        }
        nodes[node].expanded = deptExpand.value
    }
}
</script>
